Magnetic order in nanoscale gyroid networks

Koshikawa, Ami S. ; Llandro, Justin ; Ohzeki, Masayuki ; Fukami, Shunsuke ; Ohno, Hideo ; Leo, Naëmi

Resumen: Three-dimensional magnetic metamaterials feature interesting phenomena that arise from a delicate interplay of material properties, local anisotropy, curvature, and connectivity. A particularly interesting magnetic lattice that combines these aspects is that of nanoscale gyroids, with a highly interconnected chiral network with local three-connectivity reminiscent of three-dimensional artificial spin ices. Here, we use finite-element micromagnetic simulations to elucidate the anisotropic behavior of nanoscale nickel gyroid networks at applied fields and at remanence. We simplify the description of the micromagnetic spin states with a macrospin model to explain the anisotropic global response, to quantify the extent of icelike correlations, and to discuss qualitative features of the anisotropic magnetoresistance in the three-dimensional network. Our results demonstrate the large variability of the magnetic order in extended gyroid networks, which might enable future spintronic functionalities, including neuromorphic computing and nonreciprocal transport.

Idioma: Inglés

DOI: 10.1103/PhysRevB.108.024414

Año: 2023

Publicado en: Physical Review B 108, 2 (2023), 024414 [10 pp.]
ISSN: 2469-9950

Factor impacto JCR: 3.2 (2023)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 201 / 439 = 0.458 (2023) - Q2 - T2
Categ. JCR: PHYSICS, CONDENSED MATTER rank: 31 / 79 = 0.392 (2023) - Q2 - T2
Categ. JCR: PHYSICS, APPLIED rank: 62 / 179 = 0.346 (2023) - Q2 - T2

Factor impacto CITESCORE: 6.3 - Condensed Matter Physics (Q1) - Electronic, Optical and Magnetic Materials (Q2)

Factor impacto SCIMAGO: 1.345 - Condensed Matter Physics (Q1) - Electronic, Optical and Magnetic Materials (Q1)

Financiación: info:eu-repo/grantAgreement/EC/H2020/ 844304/EU/Light-controlled nanomagnetic computation schemes/LICONAMCO
Financiación: info:eu-repo/grantAgreement/EC/H2020/101001290/EU/3DNANOMAG-Three-dimensional nanoscale magnetic structures

Tipo y forma: Article (PostPrint)